Marking drill



Dec. 31, `1940. M. GLASsBr-:RG Erm.

MARKING DRILL Filed April 27, 1939 2 Sheets-Sheet 2 5 w wm m /7 www M W a MM fw H' WU .5 w y@ www i i 6 2W v u mk/ m e x a m w J m v. i

Patented Dec. 3l, 1940 MARKING DRILL Morris Glassberg, Bernard Chester, and Joseph E.

` Honig, Kingston, N. Y.

Application April 27, 1939, Serial No. 270,432

19` Claims.

This invention relates to driils, and more particularly to the type of drills which is used in marking fabric by placing a small hole therein, in the manufacture of clothing and similar articles.

5 Cloth is laid in many layers, one on top of the other, and in one cutting the manufacttuer cuts a number of identical sections. It is necessary to mark these sections in order to conform them to the pattern and to indicate where certain tailoring details, such as pockets, buttons, button holes or ornaments are to be piaced. This marking has been done by placing a thread through the pile of the material at the desired spot. This method has its obvious disadvantages and limitations. Marking has also been done by drills which used a wet needle and which would leave a slight stain at the spot where the button or other ornament was to be placed. This method is objectionable in view of the stain left on the 201 cloth which in many fabrics can not be easily removed.

An object of this invention is to provide a drill which will perform the functions indicated by leaving a small powder mark around the hole which it places in the fabric.

A further object is to provide a drill which will be accurate in its operation and which will drill a hole absolutely perpendicular to the table.

. A further object is to provide a drill which may use powder or chalk and which will not clog or easily get out of order.

The drill provided is further desirable in that it is mobile, may be easily handled by the op erator and the depth of its stroke can be dei'initely ascertained in advance so that the drill will operate through all of the layers of cloth but will not contact the table upon which the cloth is resting.

With these and other objects in View as will become apparent as this description proceeds, reference is had to the accompanying drawings in which- Fig. l is a side view partly in cross section of a drill embodying our invention;

Fig. 2 is a detailed view in cross section showing a hollow chamber;

Fig. 3 is a detailed view of the needle and the method of fastening it to the shaft;

` Fig. fl` is a detailed view of the end of the needle; j.

Fig. 5 is a sectional view taken on the line 5 5 of Fig. 4;

Fig. 6 is a cross sectional view taken on the line 5 6 of Fig. 3; and

(Cl. lOl-26) Fig. '7' is a` section cf a piece of cloth showing the manner in which the drill marks the cloth.

We provide a drill It mounted on a base I I and provided with two standards I2 and I3. A cross bar I4 is adjustably mounted on the standards I2 and IS. Slidably mounted on the standards l2 and I3 is a carriage l5 provided with handles i6 and I'I. A suitable catch I8Vis mounted on the standard I2y with a release lever I9 on the handle I6. It will be seen that the catch IB holds 10 the carriage in a xed position and that by pressing the release lever Iii, the carriage l5 may be released to slide downwardly on the standards IZ and:- I3. An adjustable stop 2tl is mounted on the standards I2 with a screw 2l adapted to 1.5. tighten or loosen the stop Ztl. The standard I2 may be graduated as by the markings Z2 so that the operator may place the stop at a predetermined position to limit the movement of the carriage I5ldownwardly on the standards I2 and I3. 2.0

Mounted in the. carriage I5 is a motor 25 hav-y ing the usual coil 26 and armature 2?. The armature Z'l is attached to a hollow shaft 28. The upper end of the shaft 28 is coupled to a shaft 29 of a conventional compressor 30 with anair 25A intake 3l and an ai-r outlet t2. The compressor Sil is motivated by thev shaft 29 and sucks in air through the air intake SI and forces it out through the air outlet 32, into a valve chamber 3,3 and through the passage 3s and through a hap 30.`

valve 35 into a powder chamber 316. In the valve chamber 33. is mounted a coil spring 49. which is seated around the valve seat lll and presses upwardly ,against the valve 42. The Valve` 42 is mounted on a stem or rod 43 which extends 35 through the top 44 of the carriage I5. When the carriage is moved upwardly into a resting position, valve stem t3 contacts a spring 45 mounted on the arm I4 and pushes the valve l2 into the valve seat lil. The valve stem is cut away at 46 40 to allow the passage of air therearound and upon the closing of the valve l2 the valve 5D is moved away from the valve seat 5l to allowthe air to pass around the valve stem 43 and through the outlet 52. l 45 The powder chamber 3% is provided with an opening 53 and a closure 54 to permit the insertion of powder into the chamber. This powder may consist oi chalk or any suitable marking material. The hollow shaft 28 extends through the 50 chamber 3 6 Where it is connected to the compressor shaft 29 by the coupling 55. A spring 55' insures the smooth operation` of the motor shaft. Mounted on the motor shaft is a scoop to and also mounted on the shaft 28 or on the scoop Bil is an 55 2 agitator 6|. At the top of the powder chamber are a plurality of baffles 62 and 62'. Toward the bottom of the chamber 36 near the lower part of the scoop 60 is an opening 63 into the hollow shaft 28. Immediately below the opening is a valve seat 64 adapted to cooperate with the bottom 65 of the rod 61 running through the upper part of the hollow shaft 28 and the hollow compressor shaft 29.

When the carriage I5 is in an inactive position and upwardly on the standards I2 and I3 the top 10 of the shaft 61 rests against the spring 12 mounted on the arm I4. Around the shaft 61 and below the top is a rubber or resilient washer 13 which will tend to force the top 10 and the rod 61 upwardly but which when compressed will allow the rod 61 to move downwardly to close the opening 63 and to seat the end 65 thereof in the valve seat 64. It will be seen that the rod 61 while moving upwardly and downwardly to close the opening 63 does not revolve with the shafts 28 and 29 but remains stationary. Mounted in the end 65 of the rod 61 is a steel ribbon 15 which extends downwardly through the hollow shaft 28 and below said shaft. On the lower end of the shaft 28 there is adjustably fastened a coupling 16 fastened to the shaft by means of set screws 11 and holding a hollow needle 18 by means of a set screw 19. A washer may be placed between the end of the shaft 28 and the needle 18 to insure close contact. The hollow needle 10 is pointed at its lower end 8| and is provided with an opening 82 adjacent thereto. Extending across the base II is a guiding bar which has an opening in the center thereof provided with a collar 9| to guide and support the needle 18. The collar 9| supports a guide or housing 93 extending below the bar 90 and provided with a lining 94 to prevent leakage of marking material through the opening B2 in the needle when the machine is not in use. The base II is further provided with a large opening 92 to allow the passage of the needle therethrough.

A switch 95 is mounted on the handle I6 with a switch handle 96 conveniently located for operation by the thumb. An adjustable relief valve |00 is also provided adjacent the valve chamber 33 to permit the escape of air through said valve |00 should the compressor build up too much pressure. An opening I0| connects with the valve chamber 33 and the spring pressed valve |02. A thumb screw |03 is provided to adjust the tension on the spring |04. It will be seen that when such excess compression is built up by the compressor 30 the air will enter the passage |0I, force back the valve |02 and escape through opening |05.

In operation, the powder chamber 36 is filled with marking material through the opening 53. The motor is started by closing the switch 95. The base II is placed upon the material. to be marked, the release lever I9 pressed and the carriage I5 allowed to move downwardly on the uprights I2 and I3. The agitator 6| sets up a centrifugal action in the powder chamber 36, causfing the marking material to be mixed thoroughly with the air now passing through the ap valve 35 into the chamber. This causes the marking material to be thrown against the baffles "62 and 62 and to fall into the path of the scoop 60| which directs the ow of powder downward and into the opening 63, into the hollow motor shaft 28, and down through the hollow needle 18 out -through the opening 82 onto the cloth. This will leave a small hole IIO surrounded by the powder mark I I I on each layer of cloth I I2.

It will be appreciated that the ribbon 15 will prevent any clogging of the needle 18 and that the air passing through the needle will assure the passage of a sucient amount of marking material to clearly mark the cloth.

It will also be appreciated that by use of the stop 20 the downward motion of the carriage and the needle will be stopped at any predetermined point. Should the air pressure build up within the chamber 3B to too great a point the flap Valve 35 will close and thus prevent powder from working back into the compressor 30. When the machine is again raised into resting position the action of the springs 45 and 12 will stop further air from entering into the powder chamber 36 and allow the air to escape through the opening 52. The action of the spring 12 on the top 10 of the rod 61 will depress the washer 13 and push the rod downwardly so that the end 65 thereof engages the valve seat 64 to prevent further powder or making material from going into the rotating shaft 20. At the same time the end of the needle 8| will move into the housing 93 and the opening 82 in the needle will be covered by the housing 93 so that ow of marking material from the needle will be stopped.

We claim:

l. In a device of the character described, a base, uprights on said base, a cross bar at the upper end of said uprights, a carriage slidably mounted on said uprights, a motor in said carriage, a hollow shaft in said motor communicating at its lower end with a hollow needle, a powder chamber above said motor, an opening in said hollow shaft communicating with said powder chamber, and means cooperating with said cross bar to close said opening when said carriage is slid upwardly on said uprights and to open said opening when said carriage is moved downwardly on said uprights.

2. In a device for marking cloth with powder, a motor, a hollow shaft in said motor, a chamber for the reception of marking powder, an opening in said hollow shaft communicating with said chamber, an agitator in said chamber to aerate said powder, a compressor operated by said shaft and communicating with said powder chamber,

and a hollow needle communicating with the lower end of said hollow shaft whereby marking powder may be forced by the air from said compressor out of the chamber into the hollow shaft and through the needle to mark the cloth pierced by said needle.

3. In a device of the character described, a motor, a hollow shaft in said motor, -a hollow needle at the lower end of said shaft adapted to4 rotate with said shaft, and a stationary member extending through said shaft and into said needle.

4. A marking drill comprising a base, uprights on said base, a bar connecting the top of said uprights, a carriage slidably mounted on said uprights and including a motor driven drill, a powder chamber and a compressor, a passage between said compressor and said powder chamber and a valve controlling said passage, means cooperating with said cross bar for closing said valve when the carriage is in an upward position and for opening said valve when the carriage is slid downwardly on said uprights, and means to establish communication between said chamber and drill.

5. A marking drill comprising a motor, a drill connected thereto to be driven thereby, a hollow 75.

shaft in said motor, a powder chamber, an opening from said powder chamber into said hollow shaft, a compressor, a passa-ge from said compressor into said powder chamber, means for simultaneously closing said passage from said powder chamber into said hollow shaft and from said compressor into said powder chamber, and means to establish communication between said hollow shaft and said drill.

6. In a device of the character described, a base, uprights on said base, a carriage slidably mounted on said uprights and a motor in said carriage, a hollow shaft on said motor, a hollow needle on said shaft, an opening in the lower end of said needle, a cross bar extending above said base, a housing in said cross bar adapted to guide ysaid needle and to close the opening therein when the carriage is in an upward position.

'7. In a device of the character described, a hollow needle, means for rotating said needle, a ribbon member in said needle, and means for holding said ribbon member stationary while the needle is rotated, whereby said ribbon member will prevent the clogging of material passing through said needle.

8. In a marking drill, a hollow needle, means for rotating said needle, a powder chamber, a channel connecting said powder chamber to said needle, a member in said needle, means for holding said member stationary when said needle is rotated, and additional means to move said member to close said channel.

9. In a powder drill, a motor, a hollow shaft in said motor, a chamber for the reception of marking powder, an opening in said hollow shaft communicating with said chamber, a hollow needle communicating with the lower end of said shaft, means for forcing powder from the chamber through said hollow needle, a stationary member mounted in said shaft and said needle, and means for moving said stationary member to close said opening.

10. In a powder drill, a hollow needle, a powder chamber, means for rotating said needle and forcing powder from said powder chamber through said needle, said means comprising a compressor, a rotating scoop, an agitator on said scoop, and baflies adapted to drop powder aerated by said agitator into said scoop.

11. In a marking drill, a hollow needle, a powder chamber, means for forcing powder from said powder chamber through said hollow needle and for rotating said needle, and a member mounted in said needle to prevent the clogging thereof.

12. In a powder marking drill, a hollow drill, means for passing powder through said drill, a member in said drill, and means for rotating said drill and said member relative to each other, whereby said member prevents the clogging of said powder in said drill.

13. A marking drill comprising a hollow needle, a support therefor, means to movably mount and guide said hollow needle in said support with respect to work to be drilled and marked, means to supply a marking powder to the interior of said needle, and to force such powder through the needle, means to aerate the powder as it is being supplied, means to actuate said needle, and means to discharge powder from the needle during action thereof.

14. In a device for marking cloth with powder, a motor, a hollow shaft in said motor, a hollow drill on the lower end of said shaft, a powder chamber communicating with said shaft, means for aerating the powder in said powder chamber, and means for forcing powder into said hollow shaft through said drill to mark the cloth pierced by said drill.

15. In a drill for marking cloth with powder, a hollow rotating shaft, a hollow needle on one end of said shaft, a chamber containing marking powder surrounding said shaft, an opening in said shaft communicating with said powder chamber, a scoop on said shaft adjacent said opening, an agitator on said scoop, ballles situated above said scoop whereby powder thrown by said agitator will contact said baffles and drop into said scoop through said opening and into said hollow shaft and needle.

16. In a device for marking cloth with powder, a rotating hollow shaft, a hollow drill on one end of said shaft, a chamber containing marking powder surrounding said hollow shaft, `an opening in said hollow shaft communicating with said chamber, means for aerating said powder in said chamber, and additional means for forcing said powder from said chamber through said hollow shaft and drill.

17. A drill for marking cloth with powder comprising a hollow needle, a support therefor, means to movably mount and guide said hollow needle with respect to the cloth to be marked, means to actuate said needle and means to aerate marking powder and supply it to the interior of said needle and to discharge said powder from said needle during the actuation thereof.

18. In a cloth marking drill for drilling and marking a cloth lay, the combination of means to drill an opening in the lay, means to supply a marking powder to the perimeter of the drill opening in the lay under pressure, and means to maintain said powder in an aerated and disbursed condition.

19. In a device for marking cloth with powder, a hollow needle, means for rotating said needle, a chamber containing marking powder, communicating means between said chamber and said needle, means for keeping said marking powder in an agitated condition, and additional means for forcing said powder from said chamber through said needle.

MORRIS GLASSBERG. BERNARD CHESTER. JOSEPH E. HONIG. 

